2022 Fiscal Year Final Research Report
Functional analysis of stress-inducible cells and establishment of stress biomarkers
Project/Area Number |
19K16903
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 51030:Pathophysiologic neuroscience-related
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Research Institution | National Institutes for Quantum Science and Technology (2022) Hokkaido University (2019-2021) |
Principal Investigator |
Tanaka Yuki 国立研究開発法人量子科学技術研究開発機構, 量子生命科学研究所, 主任研究員 (50794020)
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Project Period (FY) |
2019-04-01 – 2023-03-31
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Keywords | ストレス / ゲートウェイ反射 / IL-6アンプ |
Outline of Final Research Achievements |
In this study, we have shown that receptor A is highly expressed in stress-inducible cell populations. When the cells were treated with a neutralizing antibody against this receptor A, stress-dependent sudden death tended to increase. In this study, we also analyzed a gene (gene X) that is highly expressed in specific blood vessels in the brain in a stress-dependent manner. We generated several antibodies against gene X, and fluorescent immunostaining revealed signals in specific blood vessels in the brains of mice subjected to stress. Furthermore, we found that administration of antibodies to gene X suppressed sudden death in a stress sudden death model. In vitro experiments showed that IL-6 amp suppressed when gene X antibodies were added.
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Free Research Field |
免疫学
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Academic Significance and Societal Importance of the Research Achievements |
これまでに我々は、慢性的なストレスが脳内の特定血管に病原性T細胞をを集積させ、炎症を引き起こすことで末梢-中枢間の臓器連関に多大な影響を及ぼすことを明らかにしてきた。言い換えれば、病原性T細胞は、ストレス刺激を受けることでケモカインレセプターなどの表現型が変化した結果、脳内の特定血管に集積できる可能性があり、その表現型の変化を末梢血レベルで捉えることができれば、疾患発症前に予防策を講じることが可能となる。本研究ではストレスにより増加する細胞集団の解析および特定血管に高発現する遺伝子の解析を実施し、ストレスに対する治療法という概念の確立とともに、社会的に大きな寄与が期待される革新的な研究である。
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